/**
 *  Awesome-qr.js
 *      https://github.com/SumiMakito/Awesome-qr.js
 *
 *  Copyright © 2017 Makito <master@keep.moe>, https://www.keep.moe/
 *
 *  Licensed under Apache License 2.0 License.
 *  Copyright (c) 2017 Makito, https://www.keep.moe
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @fileoverview
 * - Using the 'QRCode for Javascript library'
 * - Fixed dataset of 'QRCode for Javascript library' for support full-spec.
 * - this library has no dependencies.
 *
 * @author davidshimjs
 * @see <a href="http://www.d-project.com/" target="_blank">http://www.d-project.com/</a>
 * @see <a href="http://jeromeetienne.github.com/jquery-qrcode/" target="_blank">http://jeromeetienne.github.com/jquery-qrcode/</a>
 */

var AwesomeQRCode;
var GIFE;

require([__awesome_qr_base_path+'/gif'], function (gifEncoder) {
    GIFE = gifEncoder;
});

// gifuct-js.js
// https://raw.githubusercontent.com/matt-way/gifuct-js/master/dist/gifuct-js.js
(function() {
    (function e(t, n, r) {
        function s(o, u) {
            if (!n[o]) {
                if (!t[o]) {
                    var a = typeof require == "function" && require;
                    if (!u && a) return a(o, !0);
                    if (i) return i(o, !0);
                    var f = new Error("Cannot find module '" + o + "'");
                    throw f.code = "MODULE_NOT_FOUND", f
                }
                var l = n[o] = { exports: {} };
                t[o][0].call(l.exports, function(e) {
                    var n = t[o][1][e];
                    return s(n ? n : e)
                }, l, l.exports, e, t, n, r)
            }
            return n[o].exports
        }

        var i = typeof require == "function" && require;
        for (var o = 0; o < r.length; o++) s(r[o]);
        return s
    })({
        1: [function(require, module, exports) {

            // Stream object for reading off bytes from a byte array

            function ByteStream(data) {
                this.data = data;
                this.pos = 0;
            }

            // read the next byte off the stream
            ByteStream.prototype.readByte = function() {
                return this.data[this.pos++];
            };

            // look at the next byte in the stream without updating the stream position
            ByteStream.prototype.peekByte = function() {
                return this.data[this.pos];
            };

            // read an array of bytes
            ByteStream.prototype.readBytes = function(n) {
                var bytes = new Array(n);
                for (var i = 0; i < n; i++) {
                    bytes[i] = this.readByte();
                }
                return bytes;
            };

            // peek at an array of bytes without updating the stream position
            ByteStream.prototype.peekBytes = function(n) {
                var bytes = new Array(n);
                for (var i = 0; i < n; i++) {
                    bytes[i] = this.data[this.pos + i];
                }
                return bytes;
            };

            // read a string from a byte set
            ByteStream.prototype.readString = function(len) {
                var str = '';
                for (var i = 0; i < len; i++) {
                    str += String.fromCharCode(this.readByte());
                }
                return str;
            };

            // read a single byte and return an array of bit booleans
            ByteStream.prototype.readBitArray = function() {
                var arr = [];
                var bite = this.readByte();
                for (var i = 7; i >= 0; i--) {
                    arr.push(!!(bite & (1 << i)));
                }
                return arr;
            };

            // read an unsigned int with endian option
            ByteStream.prototype.readUnsigned = function(littleEndian) {
                var a = this.readBytes(2);
                if (littleEndian) {
                    return (a[1] << 8) + a[0];
                } else {
                    return (a[0] << 8) + a[1];
                }
            };

            module.exports = ByteStream;
        }, {}],
        2: [function(require, module, exports) {

            // Primary data parsing object used to parse byte arrays

            var ByteStream = require('./bytestream');

            function DataParser(data) {
                this.stream = new ByteStream(data);
                // the final parsed object from the data
                this.output = {};
            }

            DataParser.prototype.parse = function(schema) {
                // the top level schema is just the top level parts array
                this.parseParts(this.output, schema);
                return this.output;
            };

            // parse a set of hierarchy parts providing the parent object, and the subschema
            DataParser.prototype.parseParts = function(obj, schema) {
                for (var i = 0; i < schema.length; i++) {
                    var part = schema[i];
                    this.parsePart(obj, part);
                }
            };

            DataParser.prototype.parsePart = function(obj, part) {
                var name = part.label;
                var value;

                // make sure the part meets any parse requirements
                if (part.requires && !part.requires(this.stream, this.output, obj)) {
                    return;
                }

                if (part.loop) {
                    // create a parse loop over the parts
                    var items = [];
                    while (part.loop(this.stream)) {
                        var item = {};
                        this.parseParts(item, part.parts);
                        items.push(item);
                    }
                    obj[name] = items;
                } else if (part.parts) {
                    // process any child parts
                    value = {};
                    this.parseParts(value, part.parts);
                    obj[name] = value;
                } else if (part.parser) {
                    // parse the value using a parser
                    value = part.parser(this.stream, this.output, obj);
                    if (!part.skip) {
                        obj[name] = value;
                    }
                } else if (part.bits) {
                    // convert the next byte to a set of bit fields
                    obj[name] = this.parseBits(part.bits);
                }
            };

            // combine bits to calculate value
            function bitsToNum(bitArray) {
                return bitArray.reduce(function(s, n) {
                    return s * 2 + n;
                }, 0);
            }

            // parse a byte as a bit set (flags and values)
            DataParser.prototype.parseBits = function(details) {
                var out = {};
                var bits = this.stream.readBitArray();
                for (var key in details) {
                    var item = details[key];
                    if (item.length) {
                        // convert the bit set to value
                        out[key] = bitsToNum(bits.slice(item.index, item.index + item.length));
                    } else {
                        out[key] = bits[item.index];
                    }
                }
                return out;
            };

            module.exports = DataParser;
        }, { "./bytestream": 1 }],
        3: [function(require, module, exports) {

            // a set of common parsers used with DataParser

            var Parsers = {
                // read a byte
                readByte: function() {
                    return function(stream) {
                        return stream.readByte();
                    };
                },
                // read an array of bytes
                readBytes: function(length) {
                    return function(stream) {
                        return stream.readBytes(length);
                    };
                },
                // read a string from bytes
                readString: function(length) {
                    return function(stream) {
                        return stream.readString(length);
                    };
                },
                // read an unsigned int (with endian)
                readUnsigned: function(littleEndian) {
                    return function(stream) {
                        return stream.readUnsigned(littleEndian);
                    };
                },
                // read an array of byte sets
                readArray: function(size, countFunc) {
                    return function(stream, obj, parent) {
                        var count = countFunc(stream, obj, parent);
                        var arr = new Array(count);
                        for (var i = 0; i < count; i++) {
                            arr[i] = stream.readBytes(size);
                        }
                        return arr;
                    };
                }
            };

            module.exports = Parsers;
        }, {}],
        4: [function(require, module, exports) {
            // export wrapper for exposing library

            var GIF = window.GIF || {};

            //GIF = require('./gif');
            GIF = require([__awesome_qr_base_path+'/gif']);

            window.GIF = GIF;
        }, {[__awesome_qr_base_path+'/gif']: 5 }],
        5: [function(require, module, exports) {

            // object used to represent array buffer data for a gif file

            var DataParser = require('../bower_components/js-binary-schema-parser/src/dataparser');
            var gifSchema = require('./schema');

            function GIF(arrayBuffer) {
                // convert to byte array
                var byteData = new Uint8Array(arrayBuffer);
                var parser = new DataParser(byteData);
                // parse the data
                this.raw = parser.parse(gifSchema);

                // set a flag to make sure the gif contains at least one image
                this.raw.hasImages = false;
                for (var f = 0; f < this.raw.frames.length; f++) {
                    if (this.raw.frames[f].image) {
                        this.raw.hasImages = true;
                        break;
                    }
                }
            }

            // process a single gif image frames data, decompressing it using LZW
            // if buildPatch is true, the returned image will be a clamped 8 bit image patch
            // for use directly with a canvas.
            GIF.prototype.decompressFrame = function(index, buildPatch) {

                // make sure a valid frame is requested
                if (index >= this.raw.frames.length) {
                    return null;
                }

                var frame = this.raw.frames[index];
                if (frame.image) {
                    // get the number of pixels
                    var totalPixels = frame.image.descriptor.width * frame.image.descriptor.height;

                    // do lzw decompression
                    var pixels = lzw(frame.image.data.minCodeSize, frame.image.data.blocks, totalPixels);

                    // deal with interlacing if necessary
                    if (frame.image.descriptor.lct.interlaced) {
                        pixels = deinterlace(pixels, frame.image.descriptor.width);
                    }

                    // setup usable image object
                    var image = {
                        pixels: pixels,
                        dims: {
                            top: frame.image.descriptor.top,
                            left: frame.image.descriptor.left,
                            width: frame.image.descriptor.width,
                            height: frame.image.descriptor.height
                        }
                    };

                    // color table
                    if (frame.image.descriptor.lct && frame.image.descriptor.lct.exists) {
                        image.colorTable = frame.image.lct;
                    } else {
                        image.colorTable = this.raw.gct;
                    }

                    // add per frame relevant gce information
                    if (frame.gce) {
                        image.delay = (frame.gce.delay || 10) * 10; // convert to ms
                        image.disposalType = frame.gce.extras.disposal;
                        // transparency
                        if (frame.gce.extras.transparentColorGiven) {
                            image.transparentIndex = frame.gce.transparentColorIndex;
                        }
                    }

                    // create canvas usable imagedata if desired
                    if (buildPatch) {
                        image.patch = generatePatch(image);
                    }

                    return image;
                }

                // frame does not contains image
                return null;


                /**
                 * javascript port of java LZW decompression
                 * Original java author url: https://gist.github.com/devunwired/4479231
                 */
                function lzw(minCodeSize, data, pixelCount) {

                    var MAX_STACK_SIZE = 4096;
                    var nullCode = -1;

                    var npix = pixelCount;
                    var available, clear, code_mask, code_size, end_of_information, in_code, old_code, bits, code, i,
                        datum, data_size, first, top, bi, pi;

                    var dstPixels = new Array(pixelCount);
                    var prefix = new Array(MAX_STACK_SIZE);
                    var suffix = new Array(MAX_STACK_SIZE);
                    var pixelStack = new Array(MAX_STACK_SIZE + 1);

                    // Initialize GIF data stream decoder.
                    data_size = minCodeSize;
                    clear = 1 << data_size;
                    end_of_information = clear + 1;
                    available = clear + 2;
                    old_code = nullCode;
                    code_size = data_size + 1;
                    code_mask = (1 << code_size) - 1;
                    for (code = 0; code < clear; code++) {
                        prefix[code] = 0;
                        suffix[code] = code;
                    }

                    // Decode GIF pixel stream.
                    datum = bits = count = first = top = pi = bi = 0;
                    for (i = 0; i < npix;) {
                        if (top === 0) {
                            if (bits < code_size) {

                                // get the next byte
                                datum += data[bi] << bits;

                                bits += 8;
                                bi++;
                                continue;
                            }
                            // Get the next code.
                            code = datum & code_mask;
                            datum >>= code_size;
                            bits -= code_size;
                            // Interpret the code
                            if ((code > available) || (code == end_of_information)) {
                                break;
                            }
                            if (code == clear) {
                                // Reset decoder.
                                code_size = data_size + 1;
                                code_mask = (1 << code_size) - 1;
                                available = clear + 2;
                                old_code = nullCode;
                                continue;
                            }
                            if (old_code == nullCode) {
                                pixelStack[top++] = suffix[code];
                                old_code = code;
                                first = code;
                                continue;
                            }
                            in_code = code;
                            if (code == available) {
                                pixelStack[top++] = first;
                                code = old_code;
                            }
                            while (code > clear) {
                                pixelStack[top++] = suffix[code];
                                code = prefix[code];
                            }

                            first = suffix[code] & 0xff;
                            pixelStack[top++] = first;

                            // add a new string to the table, but only if space is available
                            // if not, just continue with current table until a clear code is found
                            // (deferred clear code implementation as per GIF spec)
                            if (available < MAX_STACK_SIZE) {
                                prefix[available] = old_code;
                                suffix[available] = first;
                                available++;
                                if (((available & code_mask) === 0) && (available < MAX_STACK_SIZE)) {
                                    code_size++;
                                    code_mask += available;
                                }
                            }
                            old_code = in_code;
                        }
                        // Pop a pixel off the pixel stack.
                        top--;
                        dstPixels[pi++] = pixelStack[top];
                        i++;
                    }

                    for (i = pi; i < npix; i++) {
                        dstPixels[i] = 0; // clear missing pixels
                    }

                    return dstPixels;
                }

                // deinterlace function from https://github.com/shachaf/jsgif
                function deinterlace(pixels, width) {

                    var newPixels = new Array(pixels.length);
                    var rows = pixels.length / width;
                    var cpRow = function(toRow, fromRow) {
                        var fromPixels = pixels.slice(fromRow * width, (fromRow + 1) * width);
                        newPixels.splice.apply(newPixels, [toRow * width, width].concat(fromPixels));
                    };

                    // See appendix E.
                    var offsets = [0, 4, 2, 1];
                    var steps = [8, 8, 4, 2];

                    var fromRow = 0;
                    for (var pass = 0; pass < 4; pass++) {
                        for (var toRow = offsets[pass]; toRow < rows; toRow += steps[pass]) {
                            cpRow(toRow, fromRow);
                            fromRow++;
                        }
                    }

                    return newPixels;
                }

                // create a clamped byte array patch for the frame image to be used directly with a canvas
                // TODO: could potentially squeeze some performance by doing a direct 32bit write per iteration
                function generatePatch(image) {

                    var totalPixels = image.pixels.length;
                    var patchData = new Uint8ClampedArray(totalPixels * 4);
                    for (var i = 0; i < totalPixels; i++) {
                        var pos = i * 4;
                        var colorIndex = image.pixels[i];
                        var color = image.colorTable[colorIndex];
                        patchData[pos] = color[0];
                        patchData[pos + 1] = color[1];
                        patchData[pos + 2] = color[2];
                        patchData[pos + 3] = colorIndex !== image.transparentIndex ? 255 : 0;
                    }

                    return patchData;
                }
            };

            // returns all frames decompressed
            GIF.prototype.decompressFrames = function(buildPatch) {
                var frames = [];
                for (var i = 0; i < this.raw.frames.length; i++) {
                    var frame = this.raw.frames[i];
                    if (frame.image) {
                        frames.push(this.decompressFrame(i, buildPatch));
                    }
                }
                return frames;
            };

            module.exports = GIF;
        }, { "../bower_components/js-binary-schema-parser/src/dataparser": 2, "./schema": 6 }],
        6: [function(require, module, exports) {

            // Schema for the js file parser to use to parse gif files
            // For js object convenience (re-use), the schema objects are approximately reverse ordered

            // common parsers available
            var Parsers = require('../bower_components/js-binary-schema-parser/src/parsers');

            // a set of 0x00 terminated subblocks
            var subBlocks = {
                label: 'blocks',
                parser: function(stream) {
                    var out = [];
                    var terminator = 0x00;
                    for (var size = stream.readByte(); size !== terminator; size = stream.readByte()) {
                        out = out.concat(stream.readBytes(size));
                    }
                    return out;
                }
            };

            // global control extension
            var gce = {
                label: 'gce',
                requires: function(stream) {
                    // just peek at the top two bytes, and if true do this
                    var codes = stream.peekBytes(2);
                    return codes[0] === 0x21 && codes[1] === 0xF9;
                },
                parts: [
                    { label: 'codes', parser: Parsers.readBytes(2), skip: true },
                    { label: 'byteSize', parser: Parsers.readByte() },
                    {
                        label: 'extras',
                        bits: {
                            future: { index: 0, length: 3 },
                            disposal: { index: 3, length: 3 },
                            userInput: { index: 6 },
                            transparentColorGiven: { index: 7 }
                        }
                    },
                    { label: 'delay', parser: Parsers.readUnsigned(true) },
                    { label: 'transparentColorIndex', parser: Parsers.readByte() },
                    { label: 'terminator', parser: Parsers.readByte(), skip: true }
                ]
            };

            // image pipeline block
            var image = {
                label: 'image',
                requires: function(stream) {
                    // peek at the next byte
                    var code = stream.peekByte();
                    return code === 0x2C;
                },
                parts: [
                    { label: 'code', parser: Parsers.readByte(), skip: true },
                    {
                        label: 'descriptor', // image descriptor
                        parts: [
                            { label: 'left', parser: Parsers.readUnsigned(true) },
                            { label: 'top', parser: Parsers.readUnsigned(true) },
                            { label: 'width', parser: Parsers.readUnsigned(true) },
                            { label: 'height', parser: Parsers.readUnsigned(true) },
                            {
                                label: 'lct',
                                bits: {
                                    exists: { index: 0 },
                                    interlaced: { index: 1 },
                                    sort: { index: 2 },
                                    future: { index: 3, length: 2 },
                                    size: { index: 5, length: 3 }
                                }
                            }
                        ]
                    }, {
                        label: 'lct', // optional local color table
                        requires: function(stream, obj, parent) {
                            return parent.descriptor.lct.exists;
                        },
                        parser: Parsers.readArray(3, function(stream, obj, parent) {
                            return Math.pow(2, parent.descriptor.lct.size + 1);
                        })
                    }, {
                        label: 'data', // the image data blocks
                        parts: [
                            { label: 'minCodeSize', parser: Parsers.readByte() },
                            subBlocks
                        ]
                    }
                ]
            };

            // plain text block
            var text = {
                label: 'text',
                requires: function(stream) {
                    // just peek at the top two bytes, and if true do this
                    var codes = stream.peekBytes(2);
                    return codes[0] === 0x21 && codes[1] === 0x01;
                },
                parts: [
                    { label: 'codes', parser: Parsers.readBytes(2), skip: true },
                    { label: 'blockSize', parser: Parsers.readByte() },
                    {
                        label: 'preData',
                        parser: function(stream, obj, parent) {
                            return stream.readBytes(parent.text.blockSize);
                        }
                    },
                    subBlocks
                ]
            };

            // application block
            var application = {
                label: 'application',
                requires: function(stream, obj, parent) {
                    // make sure this frame doesn't already have a gce, text, comment, or image
                    // as that means this block should be attached to the next frame
                    //if(parent.gce || parent.text || parent.image || parent.comment){ return false; }

                    // peek at the top two bytes
                    var codes = stream.peekBytes(2);
                    return codes[0] === 0x21 && codes[1] === 0xFF;
                },
                parts: [
                    { label: 'codes', parser: Parsers.readBytes(2), skip: true },
                    { label: 'blockSize', parser: Parsers.readByte() },
                    {
                        label: 'id',
                        parser: function(stream, obj, parent) {
                            return stream.readString(parent.blockSize);
                        }
                    },
                    subBlocks
                ]
            };

            // comment block
            var comment = {
                label: 'comment',
                requires: function(stream, obj, parent) {
                    // make sure this frame doesn't already have a gce, text, comment, or image
                    // as that means this block should be attached to the next frame
                    //if(parent.gce || parent.text || parent.image || parent.comment){ return false; }

                    // peek at the top two bytes
                    var codes = stream.peekBytes(2);
                    return codes[0] === 0x21 && codes[1] === 0xFE;
                },
                parts: [
                    { label: 'codes', parser: Parsers.readBytes(2), skip: true },
                    subBlocks
                ]
            };

            // frames of ext and image data
            var frames = {
                label: 'frames',
                parts: [
                    gce,
                    application,
                    comment,
                    image,
                    text
                ],
                loop: function(stream) {
                    var nextCode = stream.peekByte();
                    // rather than check for a terminator, we should check for the existence
                    // of an ext or image block to avoid infinite loops
                    //var terminator = 0x3B;
                    //return nextCode !== terminator;
                    return nextCode === 0x21 || nextCode === 0x2C;
                }
            };

            // main GIF schema
            var schemaGIF = [{
                    label: 'header', // gif header
                    parts: [
                        { label: 'signature', parser: Parsers.readString(3) },
                        { label: 'version', parser: Parsers.readString(3) }
                    ]
                }, {
                    label: 'lsd', // local screen descriptor
                    parts: [
                        { label: 'width', parser: Parsers.readUnsigned(true) },
                        { label: 'height', parser: Parsers.readUnsigned(true) },
                        {
                            label: 'gct',
                            bits: {
                                exists: { index: 0 },
                                resolution: { index: 1, length: 3 },
                                sort: { index: 4 },
                                size: { index: 5, length: 3 }
                            }
                        },
                        { label: 'backgroundColorIndex', parser: Parsers.readByte() },
                        { label: 'pixelAspectRatio', parser: Parsers.readByte() }
                    ]
                }, {
                    label: 'gct', // global color table
                    requires: function(stream, obj) {
                        return obj.lsd.gct.exists;
                    },
                    parser: Parsers.readArray(3, function(stream, obj) {
                        return Math.pow(2, obj.lsd.gct.size + 1);
                    })
                },
                frames // content frames
            ];

            module.exports = schemaGIF;
        }, { "../bower_components/js-binary-schema-parser/src/parsers": 3 }]
    }, {}, [4])
})();

// QR CODE CORE LIBRARY DEFINITION
(function() {
    // QR CODE CORE LIBRARY DEFINITION START
    // SHOULD NOT BE MODIFIED
    //
    // QRCode for JavaScript
    //
    // Copyright (c) 2009 Kazuhiko Arase
    //
    // URL: http://www.d-project.com/
    //
    // Licensed under the MIT license:
    //   http://www.opensource.org/licenses/mit-license.php
    //
    // The word "QR Code" is registered trademark of DENSO WAVE INCORPORATED
    //   http://www.denso-wave.com/qrcode/faqpatent-e.html
    //

    function QR8bitByte(data) {
        this.mode = QRMode.MODE_8BIT_BYTE;
        this.data = data;
        this.parsedData = [];
        for (var i = 0, l = this.data.length; i < l; i++) {
            var byteArray = [];
            var code = this.data.charCodeAt(i);
            if (code > 0x10000) {
                byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
                byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);
                byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);
                byteArray[3] = 0x80 | (code & 0x3F)
            } else if (code > 0x800) {
                byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);
                byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);
                byteArray[2] = 0x80 | (code & 0x3F)
            } else if (code > 0x80) {
                byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);
                byteArray[1] = 0x80 | (code & 0x3F)
            } else {
                byteArray[0] = code
            }
            this.parsedData.push(byteArray)
        }
        this.parsedData = Array.prototype.concat.apply([], this.parsedData);
        if (this.parsedData.length != this.data.length) {
            this.parsedData.unshift(191);
            this.parsedData.unshift(187);
            this.parsedData.unshift(239)
        }
    }

    QR8bitByte.prototype = {
        getLength: function(buffer) {
            return this.parsedData.length
        },
        write: function(buffer) {
            for (var i = 0, l = this.parsedData.length; i < l; i++) {
                buffer.put(this.parsedData[i], 8)
            }
        }
    };

    function QRCodeModel(typeNumber, errorCorrectLevel) {
        this.typeNumber = typeNumber;
        this.errorCorrectLevel = errorCorrectLevel;
        this.modules = null;
        this.moduleCount = 0;
        this.dataCache = null;
        this.dataList = []
    }

    QRCodeModel.prototype = {
        addData: function(data) {
            var newData = new QR8bitByte(data);
            this.dataList.push(newData);
            this.dataCache = null
        },
        isDark: function(row, col) {
            if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
                throw new Error(row + "," + col)
            }
            return this.modules[row][col]
        },
        getModuleCount: function() {
            return this.moduleCount
        },
        make: function() {
            /////////////////////////////////////////////
            if (this.typeNumber < 1) {
                var typeNumber = 1;
                for (typeNumber = 1; typeNumber < 40; typeNumber++) {
                    var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel);

                    var buffer = new QRBitBuffer();
                    var totalDataCount = 0;
                    for (var i = 0; i < rsBlocks.length; i++) {
                        totalDataCount += rsBlocks[i].dataCount;
                    }

                    for (var i = 0; i < this.dataList.length; i++) {
                        var data = this.dataList[i];
                        buffer.put(data.mode, 4);
                        buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));
                        data.write(buffer);
                    }
                    if (buffer.getLengthInBits() <= totalDataCount * 8)
                        break;
                }
                this.typeNumber = typeNumber;
            }
            /////////////////////////////////////////////
            this.makeImpl(!1, this.getBestMaskPattern())
        },
        makeImpl: function(test, maskPattern) {
            this.moduleCount = this.typeNumber * 4 + 17;
            this.modules = new Array(this.moduleCount);
            for (var row = 0; row < this.moduleCount; row++) {
                this.modules[row] = new Array(this.moduleCount);
                for (var col = 0; col < this.moduleCount; col++) {
                    this.modules[row][col] = null
                }
            }
            this.setupPositionProbePattern(0, 0);
            this.setupPositionProbePattern(this.moduleCount - 7, 0);
            this.setupPositionProbePattern(0, this.moduleCount - 7);
            this.setupPositionAdjustPattern();
            this.setupTimingPattern();
            this.setupTypeInfo(test, maskPattern);
            if (this.typeNumber >= 7) {
                this.setupTypeNumber(test)
            }
            if (this.dataCache == null) {
                this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)
            }
            this.mapData(this.dataCache, maskPattern)
        },
        setupPositionProbePattern: function(row, col) {
            for (var r = -1; r <= 7; r++) {
                if (row + r <= -1 || this.moduleCount <= row + r) continue;
                for (var c = -1; c <= 7; c++) {
                    if (col + c <= -1 || this.moduleCount <= col + c) continue;
                    if ((0 <= r && r <= 6 && (c == 0 || c == 6)) || (0 <= c && c <= 6 && (r == 0 || r == 6)) || (2 <= r && r <= 4 && 2 <= c && c <= 4)) {
                        this.modules[row + r][col + c] = !0
                    } else {
                        this.modules[row + r][col + c] = !1
                    }
                }
            }
        },
        getBestMaskPattern: function() {
            var minLostPoint = 0;
            var pattern = 0;
            for (var i = 0; i < 8; i++) {
                this.makeImpl(!0, i);
                var lostPoint = QRUtil.getLostPoint(this);
                if (i == 0 || minLostPoint > lostPoint) {
                    minLostPoint = lostPoint;
                    pattern = i
                }
            }
            return pattern
        },
        createMovieClip: function(target_mc, instance_name, depth) {
            var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth);
            var cs = 1;
            this.make();
            for (var row = 0; row < this.modules.length; row++) {
                var y = row * cs;
                for (var col = 0; col < this.modules[row].length; col++) {
                    var x = col * cs;
                    var dark = this.modules[row][col];
                    if (dark) {
                        qr_mc.beginFill(0, 100);
                        qr_mc.moveTo(x, y);
                        qr_mc.lineTo(x + cs, y);
                        qr_mc.lineTo(x + cs, y + cs);
                        qr_mc.lineTo(x, y + cs);
                        qr_mc.endFill()
                    }
                }
            }
            return qr_mc
        },
        setupTimingPattern: function() {
            for (var r = 8; r < this.moduleCount - 8; r++) {
                if (this.modules[r][6] != null) {
                    continue
                }
                this.modules[r][6] = (r % 2 == 0)
            }
            for (var c = 8; c < this.moduleCount - 8; c++) {
                if (this.modules[6][c] != null) {
                    continue
                }
                this.modules[6][c] = (c % 2 == 0)
            }
        },
        setupPositionAdjustPattern: function() {
            var pos = QRUtil.getPatternPosition(this.typeNumber);
            for (var i = 0; i < pos.length; i++) {
                for (var j = 0; j < pos.length; j++) {
                    var row = pos[i];
                    var col = pos[j];
                    if (this.modules[row][col] != null) {
                        continue
                    }
                    for (var r = -2; r <= 2; r++) {
                        for (var c = -2; c <= 2; c++) {
                            if (r == -2 || r == 2 || c == -2 || c == 2 || (r == 0 && c == 0)) {
                                this.modules[row + r][col + c] = !0
                            } else {
                                this.modules[row + r][col + c] = !1
                            }
                        }
                    }
                }
            }
        },
        setupTypeNumber: function(test) {
            var bits = QRUtil.getBCHTypeNumber(this.typeNumber);
            for (var i = 0; i < 18; i++) {
                var mod = (!test && ((bits >> i) & 1) == 1);
                this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod
            }
            for (var i = 0; i < 18; i++) {
                var mod = (!test && ((bits >> i) & 1) == 1);
                this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod
            }
        },
        setupTypeInfo: function(test, maskPattern) {
            var data = (this.errorCorrectLevel << 3) | maskPattern;
            var bits = QRUtil.getBCHTypeInfo(data);
            for (var i = 0; i < 15; i++) {
                var mod = (!test && ((bits >> i) & 1) == 1);
                if (i < 6) {
                    this.modules[i][8] = mod
                } else if (i < 8) {
                    this.modules[i + 1][8] = mod
                } else {
                    this.modules[this.moduleCount - 15 + i][8] = mod
                }
            }
            for (var i = 0; i < 15; i++) {
                var mod = (!test && ((bits >> i) & 1) == 1);
                if (i < 8) {
                    this.modules[8][this.moduleCount - i - 1] = mod
                } else if (i < 9) {
                    this.modules[8][15 - i - 1 + 1] = mod
                } else {
                    this.modules[8][15 - i - 1] = mod
                }
            }
            this.modules[this.moduleCount - 8][8] = (!test)
        },
        mapData: function(data, maskPattern) {
            var inc = -1;
            var row = this.moduleCount - 1;
            var bitIndex = 7;
            var byteIndex = 0;
            for (var col = this.moduleCount - 1; col > 0; col -= 2) {
                if (col == 6) col--;
                while (!0) {
                    for (var c = 0; c < 2; c++) {
                        if (this.modules[row][col - c] == null) {
                            var dark = !1;
                            if (byteIndex < data.length) {
                                dark = (((data[byteIndex] >>> bitIndex) & 1) == 1)
                            }
                            var mask = QRUtil.getMask(maskPattern, row, col - c);
                            if (mask) {
                                dark = !dark
                            }
                            this.modules[row][col - c] = dark;
                            bitIndex--;
                            if (bitIndex == -1) {
                                byteIndex++;
                                bitIndex = 7
                            }
                        }
                    }
                    row += inc;
                    if (row < 0 || this.moduleCount <= row) {
                        row -= inc;
                        inc = -inc;
                        break
                    }
                }
            }
        }
    };
    QRCodeModel.PAD0 = 0xEC;
    QRCodeModel.PAD1 = 0x11;
    QRCodeModel.createData = function(typeNumber, errorCorrectLevel, dataList) {
        var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
        var buffer = new QRBitBuffer();
        for (var i = 0; i < dataList.length; i++) {
            var data = dataList[i];
            buffer.put(data.mode, 4);
            buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber));
            data.write(buffer)
        }
        var totalDataCount = 0;
        for (var i = 0; i < rsBlocks.length; i++) {
            totalDataCount += rsBlocks[i].dataCount
        }
        if (buffer.getLengthInBits() > totalDataCount * 8) {
            throw new Error("code length overflow. (" + buffer.getLengthInBits() + ">" + totalDataCount * 8 + ")")
        }
        if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
            buffer.put(0, 4)
        }
        while (buffer.getLengthInBits() % 8 != 0) {
            buffer.putBit(!1)
        }
        while (!0) {
            if (buffer.getLengthInBits() >= totalDataCount * 8) {
                break
            }
            buffer.put(QRCodeModel.PAD0, 8);
            if (buffer.getLengthInBits() >= totalDataCount * 8) {
                break
            }
            buffer.put(QRCodeModel.PAD1, 8)
        }
        return QRCodeModel.createBytes(buffer, rsBlocks)
    };
    QRCodeModel.createBytes = function(buffer, rsBlocks) {
        var offset = 0;
        var maxDcCount = 0;
        var maxEcCount = 0;
        var dcdata = new Array(rsBlocks.length);
        var ecdata = new Array(rsBlocks.length);
        for (var r = 0; r < rsBlocks.length; r++) {
            var dcCount = rsBlocks[r].dataCount;
            var ecCount = rsBlocks[r].totalCount - dcCount;
            maxDcCount = Math.max(maxDcCount, dcCount);
            maxEcCount = Math.max(maxEcCount, ecCount);
            dcdata[r] = new Array(dcCount);
            for (var i = 0; i < dcdata[r].length; i++) {
                dcdata[r][i] = 0xff & buffer.buffer[i + offset]
            }
            offset += dcCount;
            var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
            var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1);
            var modPoly = rawPoly.mod(rsPoly);
            ecdata[r] = new Array(rsPoly.getLength() - 1);
            for (var i = 0; i < ecdata[r].length; i++) {
                var modIndex = i + modPoly.getLength() - ecdata[r].length;
                ecdata[r][i] = (modIndex >= 0) ? modPoly.get(modIndex) : 0
            }
        }
        var totalCodeCount = 0;
        for (var i = 0; i < rsBlocks.length; i++) {
            totalCodeCount += rsBlocks[i].totalCount
        }
        var data = new Array(totalCodeCount);
        var index = 0;
        for (var i = 0; i < maxDcCount; i++) {
            for (var r = 0; r < rsBlocks.length; r++) {
                if (i < dcdata[r].length) {
                    data[index++] = dcdata[r][i]
                }
            }
        }
        for (var i = 0; i < maxEcCount; i++) {
            for (var r = 0; r < rsBlocks.length; r++) {
                if (i < ecdata[r].length) {
                    data[index++] = ecdata[r][i]
                }
            }
        }
        return data
    };
    var QRMode = { MODE_NUMBER: 1 << 0, MODE_ALPHA_NUM: 1 << 1, MODE_8BIT_BYTE: 1 << 2, MODE_KANJI: 1 << 3 };
    var QRErrorCorrectLevel = { L: 1, M: 0, Q: 3, H: 2 };
    var QRMaskPattern = {
        PATTERN000: 0,
        PATTERN001: 1,
        PATTERN010: 2,
        PATTERN011: 3,
        PATTERN100: 4,
        PATTERN101: 5,
        PATTERN110: 6,
        PATTERN111: 7
    };
    var QRUtil = {
        PATTERN_POSITION_TABLE: [
            [],
            [6, 18],
            [6, 22],
            [6, 26],
            [6, 30],
            [6, 34],
            [6, 22, 38],
            [6, 24, 42],
            [6, 26, 46],
            [6, 28, 50],
            [6, 30, 54],
            [6, 32, 58],
            [6, 34, 62],
            [6, 26, 46, 66],
            [6, 26, 48, 70],
            [6, 26, 50, 74],
            [6, 30, 54, 78],
            [6, 30, 56, 82],
            [6, 30, 58, 86],
            [6, 34, 62, 90],
            [6, 28, 50, 72, 94],
            [6, 26, 50, 74, 98],
            [6, 30, 54, 78, 102],
            [6, 28, 54, 80, 106],
            [6, 32, 58, 84, 110],
            [6, 30, 58, 86, 114],
            [6, 34, 62, 90, 118],
            [6, 26, 50, 74, 98, 122],
            [6, 30, 54, 78, 102, 126],
            [6, 26, 52, 78, 104, 130],
            [6, 30, 56, 82, 108, 134],
            [6, 34, 60, 86, 112, 138],
            [6, 30, 58, 86, 114, 142],
            [6, 34, 62, 90, 118, 146],
            [6, 30, 54, 78, 102, 126, 150],
            [6, 24, 50, 76, 102, 128, 154],
            [6, 28, 54, 80, 106, 132, 158],
            [6, 32, 58, 84, 110, 136, 162],
            [6, 26, 54, 82, 110, 138, 166],
            [6, 30, 58, 86, 114, 142, 170]
        ],
        G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
        G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
        G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1),
        getBCHTypeInfo: function(data) {
            var d = data << 10;
            while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
                d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15)))
            }
            return ((data << 10) | d) ^ QRUtil.G15_MASK
        },
        getBCHTypeNumber: function(data) {
            var d = data << 12;
            while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
                d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18)))
            }
            return (data << 12) | d
        },
        getBCHDigit: function(data) {
            var digit = 0;
            while (data != 0) {
                digit++;
                data >>>= 1
            }
            return digit
        },
        getPatternPosition: function(typeNumber) {
            return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]
        },
        getMask: function(maskPattern, i, j) {
            switch (maskPattern) {
                case QRMaskPattern.PATTERN000:
                    return (i + j) % 2 == 0;
                case QRMaskPattern.PATTERN001:
                    return i % 2 == 0;
                case QRMaskPattern.PATTERN010:
                    return j % 3 == 0;
                case QRMaskPattern.PATTERN011:
                    return (i + j) % 3 == 0;
                case QRMaskPattern.PATTERN100:
                    return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0;
                case QRMaskPattern.PATTERN101:
                    return (i * j) % 2 + (i * j) % 3 == 0;
                case QRMaskPattern.PATTERN110:
                    return ((i * j) % 2 + (i * j) % 3) % 2 == 0;
                case QRMaskPattern.PATTERN111:
                    return ((i * j) % 3 + (i + j) % 2) % 2 == 0;
                default:
                    throw new Error("bad maskPattern:" + maskPattern)
            }
        },
        getErrorCorrectPolynomial: function(errorCorrectLength) {
            var a = new QRPolynomial([1], 0);
            for (var i = 0; i < errorCorrectLength; i++) {
                a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0))
            }
            return a
        },
        getLengthInBits: function(mode, type) {
            if (1 <= type && type < 10) {
                switch (mode) {
                    case QRMode.MODE_NUMBER:
                        return 10;
                    case QRMode.MODE_ALPHA_NUM:
                        return 9;
                    case QRMode.MODE_8BIT_BYTE:
                        return 8;
                    case QRMode.MODE_KANJI:
                        return 8;
                    default:
                        throw new Error("mode:" + mode)
                }
            } else if (type < 27) {
                switch (mode) {
                    case QRMode.MODE_NUMBER:
                        return 12;
                    case QRMode.MODE_ALPHA_NUM:
                        return 11;
                    case QRMode.MODE_8BIT_BYTE:
                        return 16;
                    case QRMode.MODE_KANJI:
                        return 10;
                    default:
                        throw new Error("mode:" + mode)
                }
            } else if (type < 41) {
                switch (mode) {
                    case QRMode.MODE_NUMBER:
                        return 14;
                    case QRMode.MODE_ALPHA_NUM:
                        return 13;
                    case QRMode.MODE_8BIT_BYTE:
                        return 16;
                    case QRMode.MODE_KANJI:
                        return 12;
                    default:
                        throw new Error("mode:" + mode)
                }
            } else {
                throw new Error("type:" + type)
            }
        },
        getLostPoint: function(qrCode) {
            var moduleCount = qrCode.getModuleCount();
            var lostPoint = 0;
            for (var row = 0; row < moduleCount; row++) {
                for (var col = 0; col < moduleCount; col++) {
                    var sameCount = 0;
                    var dark = qrCode.isDark(row, col);
                    for (var r = -1; r <= 1; r++) {
                        if (row + r < 0 || moduleCount <= row + r) {
                            continue
                        }
                        for (var c = -1; c <= 1; c++) {
                            if (col + c < 0 || moduleCount <= col + c) {
                                continue
                            }
                            if (r == 0 && c == 0) {
                                continue
                            }
                            if (dark == qrCode.isDark(row + r, col + c)) {
                                sameCount++
                            }
                        }
                    }
                    if (sameCount > 5) {
                        lostPoint += (3 + sameCount - 5)
                    }
                }
            }
            for (var row = 0; row < moduleCount - 1; row++) {
                for (var col = 0; col < moduleCount - 1; col++) {
                    var count = 0;
                    if (qrCode.isDark(row, col)) count++;
                    if (qrCode.isDark(row + 1, col)) count++;
                    if (qrCode.isDark(row, col + 1)) count++;
                    if (qrCode.isDark(row + 1, col + 1)) count++;
                    if (count == 0 || count == 4) {
                        lostPoint += 3
                    }
                }
            }
            for (var row = 0; row < moduleCount; row++) {
                for (var col = 0; col < moduleCount - 6; col++) {
                    if (qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6)) {
                        lostPoint += 40
                    }
                }
            }
            for (var col = 0; col < moduleCount; col++) {
                for (var row = 0; row < moduleCount - 6; row++) {
                    if (qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col)) {
                        lostPoint += 40
                    }
                }
            }
            var darkCount = 0;
            for (var col = 0; col < moduleCount; col++) {
                for (var row = 0; row < moduleCount; row++) {
                    if (qrCode.isDark(row, col)) {
                        darkCount++
                    }
                }
            }
            var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
            lostPoint += ratio * 10;
            return lostPoint
        }
    };
    var QRMath = {
        glog: function(n) {
            if (n < 1) {
                throw new Error("glog(" + n + ")")
            }
            return QRMath.LOG_TABLE[n]
        },
        gexp: function(n) {
            while (n < 0) {
                n += 255
            }
            while (n >= 256) {
                n -= 255
            }
            return QRMath.EXP_TABLE[n]
        },
        EXP_TABLE: new Array(256),
        LOG_TABLE: new Array(256)
    };
    for (var i = 0; i < 8; i++) {
        QRMath.EXP_TABLE[i] = 1 << i
    }
    for (var i = 8; i < 256; i++) {
        QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8]
    }
    for (var i = 0; i < 255; i++) {
        QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i
    }

    function QRPolynomial(num, shift) {
        if (num.length == undefined) {
            throw new Error(num.length + "/" + shift)
        }
        var offset = 0;
        while (offset < num.length && num[offset] == 0) {
            offset++
        }
        this.num = new Array(num.length - offset + shift);
        for (var i = 0; i < num.length - offset; i++) {
            this.num[i] = num[i + offset]
        }
    }

    QRPolynomial.prototype = {
        get: function(index) {
            return this.num[index]
        },
        getLength: function() {
            return this.num.length
        },
        multiply: function(e) {
            var num = new Array(this.getLength() + e.getLength() - 1);
            for (var i = 0; i < this.getLength(); i++) {
                for (var j = 0; j < e.getLength(); j++) {
                    num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)))
                }
            }
            return new QRPolynomial(num, 0)
        },
        mod: function(e) {
            if (this.getLength() - e.getLength() < 0) {
                return this
            }
            var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0));
            var num = new Array(this.getLength());
            for (var i = 0; i < this.getLength(); i++) {
                num[i] = this.get(i)
            }
            for (var i = 0; i < e.getLength(); i++) {
                num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio)
            }
            return new QRPolynomial(num, 0).mod(e)
        }
    };

    function QRRSBlock(totalCount, dataCount) {
        this.totalCount = totalCount;
        this.dataCount = dataCount
    }

    QRRSBlock.RS_BLOCK_TABLE = [
        [1, 26, 19],
        [1, 26, 16],
        [1, 26, 13],
        [1, 26, 9],
        [1, 44, 34],
        [1, 44, 28],
        [1, 44, 22],
        [1, 44, 16],
        [1, 70, 55],
        [1, 70, 44],
        [2, 35, 17],
        [2, 35, 13],
        [1, 100, 80],
        [2, 50, 32],
        [2, 50, 24],
        [4, 25, 9],
        [1, 134, 108],
        [2, 67, 43],
        [2, 33, 15, 2, 34, 16],
        [2, 33, 11, 2, 34, 12],
        [2, 86, 68],
        [4, 43, 27],
        [4, 43, 19],
        [4, 43, 15],
        [2, 98, 78],
        [4, 49, 31],
        [2, 32, 14, 4, 33, 15],
        [4, 39, 13, 1, 40, 14],
        [2, 121, 97],
        [2, 60, 38, 2, 61, 39],
        [4, 40, 18, 2, 41, 19],
        [4, 40, 14, 2, 41, 15],
        [2, 146, 116],
        [3, 58, 36, 2, 59, 37],
        [4, 36, 16, 4, 37, 17],
        [4, 36, 12, 4, 37, 13],
        [2, 86, 68, 2, 87, 69],
        [4, 69, 43, 1, 70, 44],
        [6, 43, 19, 2, 44, 20],
        [6, 43, 15, 2, 44, 16],
        [4, 101, 81],
        [1, 80, 50, 4, 81, 51],
        [4, 50, 22, 4, 51, 23],
        [3, 36, 12, 8, 37, 13],
        [2, 116, 92, 2, 117, 93],
        [6, 58, 36, 2, 59, 37],
        [4, 46, 20, 6, 47, 21],
        [7, 42, 14, 4, 43, 15],
        [4, 133, 107],
        [8, 59, 37, 1, 60, 38],
        [8, 44, 20, 4, 45, 21],
        [12, 33, 11, 4, 34, 12],
        [3, 145, 115, 1, 146, 116],
        [4, 64, 40, 5, 65, 41],
        [11, 36, 16, 5, 37, 17],
        [11, 36, 12, 5, 37, 13],
        [5, 109, 87, 1, 110, 88],
        [5, 65, 41, 5, 66, 42],
        [5, 54, 24, 7, 55, 25],
        [11, 36, 12],
        [5, 122, 98, 1, 123, 99],
        [7, 73, 45, 3, 74, 46],
        [15, 43, 19, 2, 44, 20],
        [3, 45, 15, 13, 46, 16],
        [1, 135, 107, 5, 136, 108],
        [10, 74, 46, 1, 75, 47],
        [1, 50, 22, 15, 51, 23],
        [2, 42, 14, 17, 43, 15],
        [5, 150, 120, 1, 151, 121],
        [9, 69, 43, 4, 70, 44],
        [17, 50, 22, 1, 51, 23],
        [2, 42, 14, 19, 43, 15],
        [3, 141, 113, 4, 142, 114],
        [3, 70, 44, 11, 71, 45],
        [17, 47, 21, 4, 48, 22],
        [9, 39, 13, 16, 40, 14],
        [3, 135, 107, 5, 136, 108],
        [3, 67, 41, 13, 68, 42],
        [15, 54, 24, 5, 55, 25],
        [15, 43, 15, 10, 44, 16],
        [4, 144, 116, 4, 145, 117],
        [17, 68, 42],
        [17, 50, 22, 6, 51, 23],
        [19, 46, 16, 6, 47, 17],
        [2, 139, 111, 7, 140, 112],
        [17, 74, 46],
        [7, 54, 24, 16, 55, 25],
        [34, 37, 13],
        [4, 151, 121, 5, 152, 122],
        [4, 75, 47, 14, 76, 48],
        [11, 54, 24, 14, 55, 25],
        [16, 45, 15, 14, 46, 16],
        [6, 147, 117, 4, 148, 118],
        [6, 73, 45, 14, 74, 46],
        [11, 54, 24, 16, 55, 25],
        [30, 46, 16, 2, 47, 17],
        [8, 132, 106, 4, 133, 107],
        [8, 75, 47, 13, 76, 48],
        [7, 54, 24, 22, 55, 25],
        [22, 45, 15, 13, 46, 16],
        [10, 142, 114, 2, 143, 115],
        [19, 74, 46, 4, 75, 47],
        [28, 50, 22, 6, 51, 23],
        [33, 46, 16, 4, 47, 17],
        [8, 152, 122, 4, 153, 123],
        [22, 73, 45, 3, 74, 46],
        [8, 53, 23, 26, 54, 24],
        [12, 45, 15, 28, 46, 16],
        [3, 147, 117, 10, 148, 118],
        [3, 73, 45, 23, 74, 46],
        [4, 54, 24, 31, 55, 25],
        [11, 45, 15, 31, 46, 16],
        [7, 146, 116, 7, 147, 117],
        [21, 73, 45, 7, 74, 46],
        [1, 53, 23, 37, 54, 24],
        [19, 45, 15, 26, 46, 16],
        [5, 145, 115, 10, 146, 116],
        [19, 75, 47, 10, 76, 48],
        [15, 54, 24, 25, 55, 25],
        [23, 45, 15, 25, 46, 16],
        [13, 145, 115, 3, 146, 116],
        [2, 74, 46, 29, 75, 47],
        [42, 54, 24, 1, 55, 25],
        [23, 45, 15, 28, 46, 16],
        [17, 145, 115],
        [10, 74, 46, 23, 75, 47],
        [10, 54, 24, 35, 55, 25],
        [19, 45, 15, 35, 46, 16],
        [17, 145, 115, 1, 146, 116],
        [14, 74, 46, 21, 75, 47],
        [29, 54, 24, 19, 55, 25],
        [11, 45, 15, 46, 46, 16],
        [13, 145, 115, 6, 146, 116],
        [14, 74, 46, 23, 75, 47],
        [44, 54, 24, 7, 55, 25],
        [59, 46, 16, 1, 47, 17],
        [12, 151, 121, 7, 152, 122],
        [12, 75, 47, 26, 76, 48],
        [39, 54, 24, 14, 55, 25],
        [22, 45, 15, 41, 46, 16],
        [6, 151, 121, 14, 152, 122],
        [6, 75, 47, 34, 76, 48],
        [46, 54, 24, 10, 55, 25],
        [2, 45, 15, 64, 46, 16],
        [17, 152, 122, 4, 153, 123],
        [29, 74, 46, 14, 75, 47],
        [49, 54, 24, 10, 55, 25],
        [24, 45, 15, 46, 46, 16],
        [4, 152, 122, 18, 153, 123],
        [13, 74, 46, 32, 75, 47],
        [48, 54, 24, 14, 55, 25],
        [42, 45, 15, 32, 46, 16],
        [20, 147, 117, 4, 148, 118],
        [40, 75, 47, 7, 76, 48],
        [43, 54, 24, 22, 55, 25],
        [10, 45, 15, 67, 46, 16],
        [19, 148, 118, 6, 149, 119],
        [18, 75, 47, 31, 76, 48],
        [34, 54, 24, 34, 55, 25],
        [20, 45, 15, 61, 46, 16]
    ];
    QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) {
        var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
        if (rsBlock == undefined) {
            throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel)
        }
        var length = rsBlock.length / 3;
        var list = [];
        for (var i = 0; i < length; i++) {
            var count = rsBlock[i * 3 + 0];
            var totalCount = rsBlock[i * 3 + 1];
            var dataCount = rsBlock[i * 3 + 2];
            for (var j = 0; j < count; j++) {
                list.push(new QRRSBlock(totalCount, dataCount))
            }
        }
        return list
    };
    QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) {
        switch (errorCorrectLevel) {
            case QRErrorCorrectLevel.L:
                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
            case QRErrorCorrectLevel.M:
                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
            case QRErrorCorrectLevel.Q:
                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
            case QRErrorCorrectLevel.H:
                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
            default:
                return undefined
        }
    };

    function QRBitBuffer() {
        this.buffer = [];
        this.length = 0
    }

    QRBitBuffer.prototype = {
        get: function(index) {
            var bufIndex = Math.floor(index / 8);
            return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) == 1
        },
        put: function(num, length) {
            for (var i = 0; i < length; i++) {
                this.putBit(((num >>> (length - i - 1)) & 1) == 1)
            }
        },
        getLengthInBits: function() {
            return this.length
        },
        putBit: function(bit) {
            var bufIndex = Math.floor(this.length / 8);
            if (this.buffer.length <= bufIndex) {
                this.buffer.push(0)
            }
            if (bit) {
                this.buffer[bufIndex] |= (0x80 >>> (this.length % 8))
            }
            this.length++
        }
    };
    var QRCodeLimitLength = [
        [17, 14, 11, 7],
        [32, 26, 20, 14],
        [53, 42, 32, 24],
        [78, 62, 46, 34],
        [106, 84, 60, 44],
        [134, 106, 74, 58],
        [154, 122, 86, 64],
        [192, 152, 108, 84],
        [230, 180, 130, 98],
        [271, 213, 151, 119],
        [321, 251, 177, 137],
        [367, 287, 203, 155],
        [425, 331, 241, 177],
        [458, 362, 258, 194],
        [520, 412, 292, 220],
        [586, 450, 322, 250],
        [644, 504, 364, 280],
        [718, 560, 394, 310],
        [792, 624, 442, 338],
        [858, 666, 482, 382],
        [929, 711, 509, 403],
        [1003, 779, 565, 439],
        [1091, 857, 611, 461],
        [1171, 911, 661, 511],
        [1273, 997, 715, 535],
        [1367, 1059, 751, 593],
        [1465, 1125, 805, 625],
        [1528, 1190, 868, 658],
        [1628, 1264, 908, 698],
        [1732, 1370, 982, 742],
        [1840, 1452, 1030, 790],
        [1952, 1538, 1112, 842],
        [2068, 1628, 1168, 898],
        [2188, 1722, 1228, 958],
        [2303, 1809, 1283, 983],
        [2431, 1911, 1351, 1051],
        [2563, 1989, 1423, 1093],
        [2699, 2099, 1499, 1139],
        [2809, 2213, 1579, 1219],
        [2953, 2331, 1663, 1273]
    ]

    // END OF QR CODE CORE LIBRARY DEFINITION

    var Drawing = (function() { // Drawing in Canvas
        function _onMakeImage() {
            this._elImage.src = this._elCanvas.toDataURL("image/png");
            this._elImage.style.display = "block";
            this._elCanvas.style.display = "none";
        }

        function _safeSetDataURI(fSuccess, fFail) {
            var self = this;
            self._fFail = fFail;
            self._fSuccess = fSuccess;

            // Check it just once
            if (self._bSupportDataURI === null) {
                var el = document.createElement("img");
                var fOnError = function() {
                    self._bSupportDataURI = false;

                    if (self._fFail) {
                        self._fFail.call(self);
                    }
                };
                var fOnSuccess = function() {
                    self._bSupportDataURI = true;

                    if (self._fSuccess) {
                        self._fSuccess.call(self);
                    }
                };

                el.onabort = fOnError;
                el.onerror = fOnError;
                el.onload = fOnSuccess;
                el.src = ""; // the Image contains 1px data.
                return;
            } else if (self._bSupportDataURI === true && self._fSuccess) {
                self._fSuccess.call(self);
            } else if (self._bSupportDataURI === false && self._fFail) {
                self._fFail.call(self);
            }
        }

        var Drawing = function(htOption) {
            this._bIsPainted = false;

            this._htOption = htOption;
            this._elCanvas = document.createElement("canvas");
            this._elCanvas.width = htOption.size;
            this._elCanvas.height = htOption.size;
            this._oContext = this._elCanvas.getContext("2d");
            this._bIsPainted = false;
            this._elImage = document.createElement("img");
            this._elImage.alt = "Scan me!";
            this._elImage.style.display = "none";
            this._bSupportDataURI = null;
            this._callback = htOption.callback;
            this._bindElement = htOption.bindElement;
        };

        Drawing.prototype.draw = function(oQRCode) {
            var _elImage = this._elImage;
            var _tCanvas = document.createElement("canvas");
            var _oContext = _tCanvas.getContext("2d");
            // var _oContext = this._oContext;
            var _htOption = this._htOption;

            var nCount = oQRCode.getModuleCount();
            var rawSize = _htOption.size;
            var rawMargin = _htOption.margin;

            if (rawMargin < 0 || rawMargin * 2 >= rawSize) {
                rawMargin = 0;
            }

            var margin = Math.ceil(rawMargin);

            var rawViewportSize = rawSize - 2 * rawMargin;

            var whiteMargin = _htOption.whiteMargin;
            var backgroundDimming = _htOption.backgroundDimming;
            var nSize = Math.ceil(rawViewportSize / nCount);
            var viewportSize = nSize * nCount;
            var size = viewportSize + 2 * margin;

            var gifBackground = undefined;
            var gifFrames = undefined;

            _tCanvas.width = size;
            _tCanvas.height = size;

            var dotScale = _htOption.dotScale;
            _elImage.style.display = "none";
            this.clear();

            if (dotScale <= 0 || dotScale > 1) {
                throw new Error("Scale should be in range (0, 1).")
            }

            // Leave room for margin
            _oContext.save();
            _oContext.translate(margin, margin);

            var _bkgCanvas = document.createElement("canvas");
            _bkgCanvas.width = size;
            _bkgCanvas.height = size;
            var _bContext = _bkgCanvas.getContext("2d");

            var _maskCanvas = undefined;
            var _mContext = undefined;

            if (_htOption.gifBackground !== undefined) {
                var gif = new GIF(_htOption.gifBackground);
                // console.log(_htOption.gifBackground);
                // console.log(gif);
                if (!gif.raw.hasImages) {
                    throw new Error("An invalid gif has been selected as the background.")
                }
                gifBackground = gif;
                gifFrames = gif.decompressFrames(true);
                // console.log(gifFrames);
                if (_htOption.autoColor) {
                    var r = 0,
                        g = 0,
                        b = 0;
                    var count = 0;
                    for (var i = 0; i < gifFrames[0].colorTable.length; i++) {
                        var c = gifFrames[0].colorTable[i];
                        if (c[0] > 200 || c[1] > 200 || c[2] > 200) continue;
                        if (c[0] === 0 && c[1] === 0 && c[2] === 0) continue;
                        count++;
                        r += c[0];
                        g += c[1];
                        b += c[2];
                    }

                    r = ~~(r / count);
                    g = ~~(g / count);
                    b = ~~(b / count);
                    // console.log("rgb(" + r + ", " + g + ", " + b + ")");
                    _htOption.colorDark = "rgb(" + r + ", " + g + ", " + b + ")";
                }
            } else if (_htOption.backgroundImage !== undefined) {
                if (_htOption.autoColor) {
                    var avgRGB = getAverageRGB(_htOption.backgroundImage);
                    _htOption.colorDark = "rgb(" + avgRGB.r + ", " + avgRGB.g + ", " + avgRGB.b + ")";
                }

                if (_htOption.maskedDots) {
                    _maskCanvas = document.createElement("canvas");
                    _maskCanvas.width = size;
                    _maskCanvas.height = size;
                    _mContext = _maskCanvas.getContext("2d");
                    /*
                     _mContext.drawImage(_htOption.backgroundImage,
                     0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
                     whiteMargin ? 0 : -margin, whiteMargin ? 0 : -margin, whiteMargin ? viewportSize : size, whiteMargin ? viewportSize : size);
                     */
                    _mContext.drawImage(_htOption.backgroundImage,
                        0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
                        0, 0, size, size);

                    _bContext.rect(0, 0, size, size);
                    _bContext.fillStyle = "#ffffff";
                    _bContext.fill();
                } else {
                    /*
                     _bContext.drawImage(_htOption.backgroundImage,
                     0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
                     whiteMargin ? 0 : -margin, whiteMargin ? 0 : -margin, whiteMargin ? viewportSize : size, whiteMargin ? viewportSize : size);
                     */
                    _bContext.drawImage(_htOption.backgroundImage,
                        0, 0, _htOption.backgroundImage.width, _htOption.backgroundImage.height,
                        0, 0, size, size);
                    _bContext.rect(0, 0, size, size);
                    _bContext.fillStyle = backgroundDimming;
                    _bContext.fill();
                }
            } else {
                _bContext.rect(0, 0, size, size);
                _bContext.fillStyle = "#ffffff";
                _bContext.fill();
            }

            if (_htOption.binarize) {
                _htOption.colorDark = "#000000";
                _htOption.colorLight = "#FFFFFF";
            }

            var agnPatternCenter = QRUtil.getPatternPosition(oQRCode.typeNumber);

            var xyOffset = (1 - dotScale) * 0.5;
            for (var row = 0; row < nCount; row++) {
                for (var col = 0; col < nCount; col++) {
                    var bIsDark = oQRCode.isDark(row, col);

                    // var isBlkPosCtr = ((col < 8 && (row < 8 || row >= nCount - 8)) || (col >= nCount - 8 && row < 8) || (col < nCount - 4 && col >= nCount - 4 - 5 && row < nCount - 4 && row >= nCount - 4 - 5));
                    var isBlkPosCtr = ((col < 8 && (row < 8 || row >= nCount - 8)) || (col >= nCount - 8 && row < 8));
                    var isBlkPos = ((col < 7 && (row < 7 || row >= nCount - 7)) || (col >= nCount - 7 && row < 7));
                    var bProtected = (row === 6 || col === 6 || isBlkPosCtr);

                    for (var i = 0; i < agnPatternCenter.length - 1; i++) {
                        bProtected = bProtected || (row >= agnPatternCenter[i] - 2 && row <= agnPatternCenter[i] + 2 && col >= agnPatternCenter[i] - 2 && col <= agnPatternCenter[i] + 2);
                    }

                    var nLeft = col * nSize + (bProtected ? 0 : (xyOffset * nSize));
                    var nTop = row * nSize + (bProtected ? 0 : (xyOffset * nSize));
                    _oContext.strokeStyle = bIsDark ? _htOption.colorDark : _htOption.colorLight;
                    _oContext.lineWidth = 0.5;
                    _oContext.fillStyle = bIsDark ? _htOption.colorDark : "rgba(255, 255, 255, 0.6)"; //_htOption.colorLight;
                    if (agnPatternCenter.length === 0) {
                        // if align pattern list is empty, then it means that we don't need to leave room for the align patterns
                        if (!bProtected)
                            _fillRectWithMask(_oContext, nLeft, nTop, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, _maskCanvas, bIsDark);
                    } else {
                        var inAgnRange = ((col < nCount - 4 && col >= nCount - 4 - 5 && row < nCount - 4 && row >= nCount - 4 - 5));
                        if (!bProtected && !inAgnRange)
                            _fillRectWithMask(_oContext, nLeft, nTop, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, (bProtected ? (isBlkPosCtr ? 1 : 1) : dotScale) * nSize, _maskCanvas, bIsDark);
                    }
                }
            }

            // Draw POSITION protectors
            var protectorStyle = "rgba(255, 255, 255, 0.6)";
            _oContext.fillStyle = protectorStyle;
            _oContext.fillRect(0, 0, 8 * nSize, 8 * nSize);
            _oContext.fillRect(0, (nCount - 8) * nSize, 8 * nSize, 8 * nSize);
            _oContext.fillRect((nCount - 8) * nSize, 0, 8 * nSize, 8 * nSize);
            _oContext.fillRect(8 * nSize, 6 * nSize, (nCount - 8 - 8) * nSize, nSize);
            _oContext.fillRect(6 * nSize, 8 * nSize, nSize, (nCount - 8 - 8) * nSize);

            // Draw ALIGN protectors
            var edgeCenter = agnPatternCenter[agnPatternCenter.length - 1];
            for (var i = 0; i < agnPatternCenter.length; i++) {
                for (var j = 0; j < agnPatternCenter.length; j++) {
                    var agnX = agnPatternCenter[j];
                    var agnY = agnPatternCenter[i];
                    if (agnX === 6 && (agnY === 6 || agnY === edgeCenter)) {
                        continue;
                    } else if (agnY === 6 && (agnX === 6 || agnX === edgeCenter)) {
                        continue;
                    } else if (agnX !== 6 && agnX !== edgeCenter && agnY !== 6 && agnY !== edgeCenter) {
                        _drawAlignProtector(_oContext, agnX, agnY, nSize, nSize);
                    } else {
                        _drawAlignProtector(_oContext, agnX, agnY, nSize, nSize);
                    }
                    // console.log("agnX=" + agnX + ", agnY=" + agnX);
                }
            }

            // Draw POSITION patterns
            _oContext.fillStyle = _htOption.colorDark;
            _oContext.fillRect(0, 0, 7 * nSize, nSize);
            _oContext.fillRect((nCount - 7) * nSize, 0, 7 * nSize, nSize);
            _oContext.fillRect(0, 6 * nSize, 7 * nSize, nSize);
            _oContext.fillRect((nCount - 7) * nSize, 6 * nSize, 7 * nSize, nSize);
            _oContext.fillRect(0, (nCount - 7) * nSize, 7 * nSize, nSize);
            _oContext.fillRect(0, (nCount - 7 + 6) * nSize, 7 * nSize, nSize);
            _oContext.fillRect(0, 0, nSize, 7 * nSize);
            _oContext.fillRect(6 * nSize, 0, nSize, 7 * nSize);
            _oContext.fillRect((nCount - 7) * nSize, 0, nSize, 7 * nSize);
            _oContext.fillRect((nCount - 7 + 6) * nSize, 0, nSize, 7 * nSize);
            _oContext.fillRect(0, (nCount - 7) * nSize, nSize, 7 * nSize);
            _oContext.fillRect(6 * nSize, (nCount - 7) * nSize, nSize, 7 * nSize);

            _oContext.fillRect(2 * nSize, 2 * nSize, 3 * nSize, 3 * nSize);
            _oContext.fillRect((nCount - 7 + 2) * nSize, 2 * nSize, 3 * nSize, 3 * nSize);
            _oContext.fillRect(2 * nSize, (nCount - 7 + 2) * nSize, 3 * nSize, 3 * nSize);

            for (var i = 0; i < nCount - 8; i += 2) {
                _oContext.fillRect((8 + i) * nSize, 6 * nSize, nSize, nSize);
                _oContext.fillRect(6 * nSize, (8 + i) * nSize, nSize, nSize);
            }
            for (var i = 0; i < agnPatternCenter.length; i++) {
                for (var j = 0; j < agnPatternCenter.length; j++) {
                    var agnX = agnPatternCenter[j];
                    var agnY = agnPatternCenter[i];
                    if (agnX === 6 && (agnY === 6 || agnY === edgeCenter)) {
                        continue;
                    } else if (agnY === 6 && (agnX === 6 || agnX === edgeCenter)) {
                        continue;
                    } else if (agnX !== 6 && agnX !== edgeCenter && agnY !== 6 && agnY !== edgeCenter) {
                        _oContext.fillStyle = "rgba(0, 0, 0, .2)";
                        _drawAlign(_oContext, agnX, agnY, nSize, nSize);
                    } else {
                        _oContext.fillStyle = _htOption.colorDark;
                        _drawAlign(_oContext, agnX, agnY, nSize, nSize);
                    }
                }
            }

            // Fill the margin
            if (whiteMargin) {
                _oContext.fillStyle = '#FFFFFF';
                _oContext.fillRect(-margin, -margin, size, margin);
                _oContext.fillRect(-margin, viewportSize, size, margin);
                _oContext.fillRect(viewportSize, -margin, margin, size);
                _oContext.fillRect(-margin, -margin, margin, size);
            }

            if (_htOption.logoImage !== undefined) {
                var logoScale = _htOption.logoScale;
                var logoMargin = _htOption.logoMargin;
                var logoCornerRadius = _htOption.logoCornerRadius;
                if (logoScale <= 0 || logoScale >= 1.0) {
                    logoScale = 0.2;
                }
                if (logoMargin < 0) {
                    logoMargin = 0;
                }
                if (logoCornerRadius < 0) {
                    logoCornerRadius = 0;
                }

                _oContext.restore();

                var logoSize = viewportSize * logoScale;
                var x = 0.5 * (size - logoSize);
                var y = x;

                _oContext.fillStyle = '#FFFFFF';
                _oContext.save();
                _prepareRoundedCornerClip(_oContext, x - logoMargin, y - logoMargin, logoSize + 2 * logoMargin, logoSize + 2 * logoMargin, logoCornerRadius);
                _oContext.clip();
                _oContext.fill();
                _oContext.restore();

                _oContext.save();
                _prepareRoundedCornerClip(_oContext, x, y, logoSize, logoSize, logoCornerRadius);
                _oContext.clip();
                _oContext.drawImage(_htOption.logoImage, x, y, logoSize, logoSize);
                _oContext.restore();
            }

            if (gifBackground === undefined) {
                // Swap and merge the foreground and the background
                _bContext.drawImage(_tCanvas, 0, 0, size, size);
                _oContext.drawImage(_bkgCanvas, -margin, -margin, size, size);

                // Binarize the final image
                if (_htOption.binarize) {
                    var pixels = _oContext.getImageData(0, 0, size, size);
                    var threshold = 128;
                    if (parseInt(_htOption.binarizeThreshold) > 0 && parseInt(_htOption.binarizeThreshold) < 255) {
                        threshold = parseInt(_htOption.binarizeThreshold);
                    }
                    for (var i = 0; i < pixels.data.length; i += 4) {
                        // rgb in [0, 255]
                        var R = pixels.data[i];
                        var G = pixels.data[i + 1];
                        var B = pixels.data[i + 2];
                        var sum = _greyscale(R, G, B);
                        if (sum > threshold) {
                            pixels.data[i] = 255;
                            pixels.data[i + 1] = 255;
                            pixels.data[i + 2] = 255;
                        } else {
                            pixels.data[i] = 0;
                            pixels.data[i + 1] = 0;
                            pixels.data[i + 2] = 0;
                        }
                    }
                    _oContext.putImageData(pixels, 0, 0);
                }

                // Scale the final image
                var _fCanvas = document.createElement("canvas");
                var _fContext = _fCanvas.getContext("2d");
                _fCanvas.width = rawSize;
                _fCanvas.height = rawSize;
                _fContext.drawImage(_tCanvas, 0, 0, rawSize, rawSize);
                this._elCanvas = _fCanvas;

                // Painting work completed
                this._bIsPainted = true;
                if (this._callback !== undefined) {
                    this._callback(this._elCanvas.toDataURL());
                }
                if (this._bindElement !== undefined) {
                    try {
                        var el = document.getElementById(this._bindElement);
                        if (el.nodeName === 'IMG') {
                            el.src = this._elCanvas.toDataURL();
                        } else {
                            var elStyle = el.style;
                            elStyle["background-image"] = 'url(' + this._elCanvas.toDataURL() + ')';
                            elStyle["background-size"] = 'contain';
                            elStyle["background-repeat"] = 'no-repeat';
                        }
                    } catch (e) {
                        console.error(e);
                    }
                }
            } else {
                var gifOutput;

                // Reuse in order to apply the patch
                var rawBkg;
                var hRawBkg;

                var patchCanvas = document.createElement("canvas");
                var hPatchCanvas = patchCanvas.getContext("2d");
                var patchData;

                gifFrames.forEach(function(frame) {
                    // console.log(frame);
                    if (gifOutput === undefined) {
                        gifOutput = new GIFE({
                            workers: 4,
                            quality: 10,
                            width: rawSize,
                            height: rawSize
                        });
                    }

                    if (rawBkg === undefined) {
                        rawBkg = document.createElement("canvas");
                        hRawBkg = rawBkg.getContext("2d");
                        rawBkg.width = frame.dims.width;
                        rawBkg.height = frame.dims.height;
                        hRawBkg.rect(0, 0, rawBkg.width, rawBkg.height);
                        hRawBkg.fillStyle = "#ffffff";
                        hRawBkg.fill();
                        // console.log(rawBkg);
                    }

                    if (!patchData || frame.dims.width !== patchCanvas.width || frame.dims.height !== patchCanvas.height) {
                        patchCanvas.width = frame.dims.width;
                        patchCanvas.height = frame.dims.height;
                        patchData = hPatchCanvas.createImageData(frame.dims.width, frame.dims.height);
                    }

                    patchData.data.set(frame.patch);
                    hPatchCanvas.putImageData(patchData, 0, 0);

                    hRawBkg.drawImage(patchCanvas, frame.dims.left, frame.dims.top);

                    var stdCanvas = document.createElement("canvas");
                    stdCanvas.width = size;
                    stdCanvas.height = size;
                    var hStdCanvas = stdCanvas.getContext("2d");

                    hStdCanvas.drawImage(rawBkg, 0, 0, size, size);
                    hStdCanvas.drawImage(_tCanvas, 0, 0, size, size);

                    // Scale the final image
                    var _fCanvas = document.createElement("canvas");
                    var _fContext = _fCanvas.getContext("2d");
                    _fCanvas.width = rawSize;
                    _fCanvas.height = rawSize;
                    _fContext.drawImage(stdCanvas, 0, 0, rawSize, rawSize);
                    // console.log(_fContext);
                    gifOutput.addFrame(_fContext, { copy: true, delay: frame.delay });
                });

                if (gifOutput === undefined) {
                    throw new Error("No frames.")
                }
                var ref = this;
                gifOutput.on('finished', function(blob) {
                    // Painting work completed
                    var r = new FileReader();
                    r.onload = function(e) {
                        var data = e.target.result;
                        ref._bIsPainted = true;
                        if (ref._callback !== undefined) {
                            ref._callback(data);
                        }
                        if (ref._bindElement !== undefined) {
                            try {
                                var el = document.getElementById(ref._bindElement);
                                if (el.nodeName === 'IMG') {
                                    el.src = data;
                                } else {
                                    var elStyle = el.style;
                                    elStyle["background-image"] = 'url(' + data + ')';
                                    elStyle["background-size"] = 'contain';
                                    elStyle["background-repeat"] = 'no-repeat';
                                }
                            } catch (e) {
                                console.error(e);
                            }
                        }
                    };
                    r.readAsDataURL(blob);
                });

                gifOutput.render();
            }


        };

        Drawing.prototype.makeImage = function() {
            if (this._bIsPainted) {
                _safeSetDataURI.call(this, _onMakeImage);
            }
        };

        Drawing.prototype.isPainted = function() {
            return this._bIsPainted;
        };

        Drawing.prototype.clear = function() {
            this._oContext.clearRect(0, 0, this._elCanvas.width, this._elCanvas.height);
            this._bIsPainted = false;
        };

        Drawing.prototype.round = function(nNumber) {
            if (!nNumber) {
                return nNumber;
            }

            return Math.floor(nNumber * 1000) / 1000;
        };

        return Drawing;
    })();

    // Utilities and useful helpers

    function _getUTF8Length(sText) {
        var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
        return replacedText.length + (replacedText.length != sText ? 3 : 0);
    }

    function _prepareRoundedCornerClip(ctx, x, y, w, h, r) {
        ctx.beginPath();
        ctx.moveTo(x, y);
        ctx.arcTo(x + w, y, x + w, y + h, r);
        ctx.arcTo(x + w, y + h, x, y + h, r);
        ctx.arcTo(x, y + h, x, y, r);
        ctx.arcTo(x, y, x + w, y, r);
        ctx.closePath();
    }

    function _setPixel(imageData, p, r, g, b, a) {
        index = p * 4;
        imageData.data[index + 0] = r;
        imageData.data[index + 1] = g;
        imageData.data[index + 2] = b;
        imageData.data[index + 3] = a;
    }

    function _greyscale(r, g, b) {
        return 0.30 * r + 0.59 * b + 0.11 * b;
    }

    function _fillRectWithMask(canvas, x, y, w, h, maskSrc, bDark) {
        //console.log("maskSrc=" + maskSrc);
        if (maskSrc === undefined) {
            canvas.fillRect(x, y, w, h);
        } else {
            canvas.drawImage(maskSrc, x, y, w, h, x, y, w, h);
            var fill_ = canvas.fillStyle;
            canvas.fillStyle = bDark ? "rgba(0, 0, 0, .5)" : "rgba(255, 255, 255, .7)";
            canvas.fillRect(x, y, w, h);
            canvas.fillStyle = fill_;
        }
    }

    function _drawAlignProtector(context, centerX, centerY, nWidth, nHeight) {
        context.clearRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, 5 * nWidth, 5 * nHeight);
        context.fillRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, 5 * nWidth, 5 * nHeight);
    }

    function _drawAlign(context, centerX, centerY, nWidth, nHeight) {
        context.fillRect((centerX - 2) * nWidth, (centerY - 2) * nHeight, nWidth, 4 * nHeight);
        context.fillRect((centerX + 2) * nWidth, (centerY - 2 + 1) * nHeight, nWidth, 4 * nHeight);
        context.fillRect((centerX - 2 + 1) * nWidth, (centerY - 2) * nHeight, 4 * nWidth, nHeight);
        context.fillRect((centerX - 2) * nWidth, (centerY + 2) * nHeight, 4 * nWidth, nHeight);
        context.fillRect(centerX * nWidth, centerY * nHeight, nWidth, nHeight);
    }

    AwesomeQRCode = function() {};

    AwesomeQRCode.prototype.create = function(vOption) {
        this._htOption = {
            size: 800,
            margin: 20,
            typeNumber: 4,
            colorDark: "#000000",
            colorLight: "#ffffff",
            correctLevel: QRErrorCorrectLevel.M,
            backgroundImage: undefined,
            backgroundDimming: 'rgba(0,0,0,0)',
            logoImage: undefined,
            logoScale: 0.2,
            logoMargin: 6,
            logoCornerRadius: 8,
            whiteMargin: true,
            dotScale: 0.35,
            maskedDots: false,
            autoColor: true,
            binarize: false,
            binarizeThreshold: 128,
            gifBackground: undefined,
            callback: undefined,
            bindElement: undefined
        };

        if (typeof vOption === 'string') {
            vOption = {
                text: vOption
            };
        }

        if (vOption) {
            for (var i in vOption) {
                this._htOption[i] = vOption[i];
            }
        }

        this._oQRCode = null;
        this._oDrawing = new Drawing(this._htOption);

        if (this._htOption.text) {
            this.makeCode(this._htOption.text);
        }
    };

    function _getTypeNumber(sText, nCorrectLevel) {
        var nType = 1;
        var length = _getUTF8Length(sText);

        for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
            var nLimit = 0;

            switch (nCorrectLevel) {
                case QRErrorCorrectLevel.L:
                    nLimit = QRCodeLimitLength[i][0];
                    break;
                case QRErrorCorrectLevel.M:
                    nLimit = QRCodeLimitLength[i][1];
                    break;
                case QRErrorCorrectLevel.Q:
                    nLimit = QRCodeLimitLength[i][2];
                    break;
                case QRErrorCorrectLevel.H:
                    nLimit = QRCodeLimitLength[i][3];
                    break;
            }

            if (length <= nLimit) {
                break;
            } else {
                nType++;
            }
        }

        if (nType > QRCodeLimitLength.length) {
            throw new Error("Too long data");
        }

        return nType;
    }

    AwesomeQRCode.prototype.makeCode = function(sText) {
        //this._oQRCode = new QRCodeModel(_getTypeNumber(sText, this._htOption.correctLevel), this._htOption.correctLevel);
        this._oQRCode = new QRCodeModel(-1, this._htOption.correctLevel);
        this._oQRCode.addData(sText);
        this._oQRCode.make();
        this._oDrawing.draw(this._oQRCode);
        this.makeImage();
    };

    AwesomeQRCode.prototype.makeImage = function() {
        if (typeof this._oDrawing.makeImage == "function") {
            this._oDrawing.makeImage();
        }
    };

    AwesomeQRCode.prototype.clear = function() {
        this._oDrawing.clear();
    };

    AwesomeQRCode.CorrectLevel = QRErrorCorrectLevel;

    function getAverageRGB(imgEl) {

        var blockSize = 5,
            defaultRGB = {
                r: 0,
                g: 0,
                b: 0
            },
            canvas = document.createElement('canvas'),
            context = canvas.getContext && canvas.getContext('2d'),
            data, width, height,
            i = -4,
            length,
            rgb = {
                r: 0,
                g: 0,
                b: 0
            },
            count = 0;

        if (!context) {
            return defaultRGB;
        }

        height = canvas.height = imgEl.naturalHeight || imgEl.offsetHeight || imgEl.height;
        width = canvas.width = imgEl.naturalWidth || imgEl.offsetWidth || imgEl.width;

        context.drawImage(imgEl, 0, 0);

        try {
            data = context.getImageData(0, 0, width, height);
        } catch (e) {
            return defaultRGB;
        }

        length = data.data.length;

        while ((i += blockSize * 4) < length) {
            if (data.data[i] > 200 || data.data[i + 1] > 200 || data.data[i + 2] > 200) continue;
            ++count;
            rgb.r += data.data[i];
            rgb.g += data.data[i + 1];
            rgb.b += data.data[i + 2];
        }

        rgb.r = ~~(rgb.r / count);
        rgb.g = ~~(rgb.g / count);
        rgb.b = ~~(rgb.b / count);

        return rgb;
    }
})();

(function(window, factory) {
    if (typeof exports === 'object') {
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define(factory);
    } else {
        window.eventUtil = factory();
    }
})(this, function() {
    return new AwesomeQRCode();
});
